The Sterling Plaza park-and-ride lot is located on Enterprise Street near Park Pharmacy. It offers 45 parking spaces for commuters who would like to access the fast-moving HOV lanes on the Dulles Toll Road. To reach the HOV lanes, take Sterling Boulevard west and turn left on to Rt. 28 (Sully Road). This roads leads you to the Dulles Greenway, which connects to the Dulles Toll Road HOV lanes.